APA (7th ed.) Citation

World Tourism Organization, United Nations Environment Programme. Industry and Environment, United Nations Environment Programme. Industry & Environment Office, & United Nations Environment Programme. Industry and Environment Programme Activity Centre. (1989). Technical report series. UNEP/IEO.

Chicago Style (17th ed.) Citation

World Tourism Organization, United Nations Environment Programme. Industry and Environment, United Nations Environment Programme. Industry & Environment Office, and United Nations Environment Programme. Industry and Environment Programme Activity Centre. Technical Report Series. Paris: UNEP/IEO, 1989.

MLA (8th ed.) Citation

World Tourism Organization, et al. Technical Report Series. UNEP/IEO, 1989.